U.S. Principal Deputy Assistant Secretary of the Navy Mr. Steven R. Iselin, tours Marine Corps Base Camp Pendleton, on May 23, 2016. Mr. Iselin was touring different installations across the Department of the Navy as part of his oncoming role of being the new Principal Deputy Assistant Secretary of the Navy. (U.S. Marine Corps photo by Cpl. Tyler S. Dietrich, MCIWEST-MCB CamPen Combat Camera/Released)